(19)

(11)

EP 3 169 974 A2

(12)

(88) Date of publication A3: 21.04.2016 (43) Date of publication: 24.05.2017 Bulletin 2017/21 (21) Application number: 15757339.5 (22) Date of filing: 17.07.2015

(51) International Patent Classification (IPC):  G01C 11/02(2006.01) G01W 1/08(2006.01) G03B 15/00(2006.01) (86) International application number: PCT/IB2015/055429 (87) International publication number: WO 2016/009402 (21.01.2016 Gazette 2016/03)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME Designated Validation States: MA (30) Priority: 18.07.2014 IT RM20140398 (71) Applicant: Altec S.p.A. 10146 Torino (IT)	(72) Inventor: MUSSO, Ivano 10146 Torino (IT) (74) Representative: Scilletta, Andrea  IP Sextant s.r.l. Via Antonio Salandra, 18 00187 Roma 00187 Roma (IT)